594 vn. lichenes. [ Verrucaria . 
immersed, at length partially exposed ; spores dark brown, fusiform-ellipsoid, 
with 4 minute cells. — Nyland. Exp. Syn. Pyren. 45. 
Var. pseudo-nitidella, Knight, 1. c. t. 11. f. 6. Thallus ferruginous, effuse. Apothecia 
small, naked. 
Northern and middle Islands : Bay of Islands, on hark, J. D. H. (Cosmopolite.) 
Var. pseudo-nitidella, Auckland, on bark, Knight ; Otago, Lindsay. 
10. V. glabrata, Ach. Thallus effuse, white or evanescent. Apothecia 
dimidiate, somewhat prominent, in other respects as in V. nitida. — Nyland. 
Exp. Syn. Pyren. 47. 
Var. a. Knight 1. c. 1. 11. f. 7- Thallus white or waxy, effuse or limited. Apothecia large, 
naked or veiled by the epidermis. 
Var. f). cinereo-alba, Knight and Mitt. 1. c. Thallus membranous, ashy-white, contigu- 
ous. Apothecia small, hemispheric at first, covered by the thallus ; spores 2-seriate. 
Var. y. deprimens, Knight, 1. c. t. 11. f. 8. Thallus ashy, effuse. Apothecia entire or 
dimidiate ; spores sometimes 1-2-septate ; upper cell much the largest. 
Var. S. homulisma, Knight, 1. c. t. 11. f. 9. Thallus yellow-brown, effuse, smooth. 
Apothecia very large, quite flat, entire, widely spreadiug. 
Northern and middle Islands : probably common, from Auckland, on hark, Knight, 
to Otago, Lindsay. (Europe, etc.) 
y. Spores many-celled or muricate. 
11. V. moniliformis, Knight, l.c. t. 11./. 10. Thallus olive-green, 
effuse, unequal. Apothecia entire, sinuate or superficial, spreading at the 
base; nucleus subglobose, yellow; asci cylindric; spores 7-septate, brown, 
ellipsoid ; nucleoli often moniliform. 
Northern Island : Auckland, on bark, Knight. 
12. V. deliquescens, Knight , l.c. t. 11./. 11. Thallus effuse, yellow, 
glabrous. Apothecia more or less hid by the epidermis, entire, thick, spread- 
ing at the base; spores somewhat curved, 1-septate or 10-nucleolate, brown; 
nuclei lenticular-elliptic, often deliquescent. 
Northern Island : Auckland, on bark, Knight. 
13. V. pyrenastroides, Kniglit, l.c. t. 11./. 12. Thallus yellow or 
grey, effuse. Apothecia entire, confluent, more or less hidden by the epi- 
dermis, at length exposed ; ostioles distinct, surrounded by a pale areola ; 
spores elliptic-oblong, large, brown, many celled, 8-10-annulate ; rings 
formed of quadrate cells. 
Northern Island: Auckland, on hark, Knight. 
14. V. cellulosa, Knight, l.c. t. 11./. 13. Thallus effuse, olive-green. 
Apothecia excessively minute, entire, cellular, superficial ; nucleus grey-black ; 
asci subrotund ; spores large, elliptic-oblong, 2-seriate, brown, muricate. 
Northern Island : Auckland, on bark, Knight. 
15. V. Haultaini, Knight, l.c. t. 11./. 14. Thallus olive-green or 
ocliraceous, unequal, effuse. Apothecia excessively minute, immersed, when 
moist dimidiate; nucleus globose; asci clavate; spores large, subclavate, 
muricate, 0'00025 in. broad, 0'0009 long. 
Northern Island : Auckland, on bark, Knight. 
Dr. Lindsay, in his ‘ Catalogue of Otago Lichens,’ enumerates V. pallida, Ach. 
